Curling oven



FIG. 1 is a perspective view of a curling oven of the present invention;

FIG. 2 is a perspective view of the curling oven of FIG. 1, according to the present invention;

FIG. 3 is a top plan view of the curling oven of FIG. 1, according to the present invention; and,

FIG. 4 is a side elevation view of the curling oven of FIG. 1, according to the present invention.

The broken line showing of blocks in the drawings illustrate unclaimed portions of the curling oven and form no part of the claimed design. 

The ornamental design for a curling oven, as shown and described. 